Fig. 2

Summaries of differentially regulated genes during the time course. a, Differentially expressed genes were identified either by a comparison of each time point of salt stress to 0 h or comparing the adjacent stages. “0.5 vs 0” indicates a comparison between the gene expression in the 0.5-h stress with that in the 0-h stress, and this similarly applies to the other labels on the x-axis. b, Gene ontology classification of 2121 up-regulated DEGs at 12 h of salt stress. BP: biological process; CC: cellular component; MF: molecular function. c, Lines indicate changes in gene expression relating to the osmotic (solid line) and ionic phases (broken line) of salt stress, respectively. Genes involved in the osmotic phases are mainly associated with osmotic adjustment, osmolyte production, water loss and signal transduction pathways, etc. Genes identified in ionic phase are primarily responsible for ion transport and ion equilibrium [1, 7, 11, 30,31,32]